Table 1 Baseline characteristics of 68 patients with chronic inflammatory low back pain
Characteristic | All patients (N = 68) |
|---|---|
Sex (% male) | 38 |
Mean age (years) (SD) | 34.9 (10.3) |
Median symptom duration (months) (interquartile range) | 18.0 [12.0–24.0] |
Criteria for inflammatory low back pain | |
Three criteria present (%) | 56 |
Four criteria present (%) | 41 |
Five criteria present (%) | 3 |
Night pain present (%) | 96a |
HLA-B27 present (%) | 46 |
History of inflammatory bowel disease present (%) | 15 |
History of uveitis present (%) | 15 |
History of psoriasis present (%) | 24 |
Family history of ankylosing spondylitis present (%) | 37 |